Scorpenes will have both. EHWT and Blackshark. EHWT tested on Kilo class will mean, its also for the Kilos.
https://www.pib.gov.in/PressReleaseIfra ... ID=2088874
Ministry of Defence has signed two contracts, worth approx. Rs 2,867 crore, for the construction of Air Independent Propulsion (AIP) Plug for DRDO-AIP system & its integration onboard Indian Submarines, and the
integration of Electronic Heavy Weight Torpedo (EHWT) onboard the Kalvari-Class submarines. Both the contracts were signed in the presence of Defence Secretary Shri Rajesh Kumar Singh in New Delhi on December 30, 2024.
The contract for construction of AIP Plug and its integration was inked with Mazagon Dock Shipbuilders Limited, Mumbai worth around Rs 1,990 crore, while the
contract for integration of EHWT, being developed by DRDO, was signed with Naval Group, France at an approx. cost of Rs 877 crore.
There is a 2012 article talking about Takshak and also about Shakti, which is a thermal torpedo with 60 knots speed.
https://web.archive.org/web/20210928105 ... 164828.ece
The
NSTL has developed both light-water torpedoes (LWTs), named TAL, and heavy-weight torpedoes (HWTs), named Takshak and Varunastra.
Takshak has two versions, a submarine-launched variant with wire guidance and a ship-launched one with autonomous guidance. Varunastra is an advanced version of the ship-launched HWT. Under development is a torpedo called Shakti with thermal propulsion, which can generate 500 kilowatt of power and rev up the engine within a second. Thermal propulsion is a challenging technology, said Rangarajan. It is a totally indigenous effort. We have already consolidated several technologies in its development. Only the United States, the United Kingdom and Russia had torpedoes with thermal propulsion when we took up the challenge.
Another mention of Takshak project can be found here
India’s Submarine Arm — Returning to Even-Trim
https://cimsec.org/indias-submarine-arm ... even-trim/
February 9, 2017 Guest Author Leave a comment
This article originally featured in Geopolitics and is republished with permission.
By Vice Admiral Pradeep Chauhan, AVSM & Bar, VSM, IN (Retd)
Torpedoes. India’s investment in infrastructure for the development and testing of torpedoes notwithstanding, each such program is time-consuming and can take upwards of 15 years. However, the
successful induction of the Varunastra heavyweight torpedo aboard the IN’s surface combatants has led to an ongoing development of a submarine-launched version (an upgrade of DRDO’s now-defunct Takshak project).
An unfortunate spinoff from the Sindhurakshak tragedy (and that of the Russian Kursk) is a loss of confidence in thermal torpedoes and consequent uncertainties in respect of DRDO’s development of the Shakti thermal heavyweight torpedo, which was expected to be the main armament of India’s nuclear submarines and additionally represented an upgrade-option for the Sindhughosh Class.
